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Stainless Steel Fasteners

316 or 316L austenitic stainless steel is used to manufacture the A4 70 and A4 80 bolts. The letter A denotes cold forged austenitic stainless steel fasteners. Dimensional control is governed by numerous standards. A4-70 hex bolts and other fasteners are available in sizes ranging from M10 to M100. Depending on the material qualities, the A4-80 Stainless Steel Bolt can be found in grades ranging from 1 to 5. The bolt is composed of cold wrought austenitic stainless steel and is acid resistant.

A hex bolt is a fastener with a six-sided forged head and a machine thread that is used in connection with a nut to generate the nut and bolt combination which is used to hold a joint on both sides of a body. This works in a similar way to a screw with a thread, except it rotates on its own axis to penetrate and secure the surface of Nuts. Cap screws and equipment bolts are other names for hex bolts. They normally range in diameter from 1/2" to 12". They can be up to 30" long. The thread length changes according to the length of the bolts.